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Finding the Fourth Proportional to 265,267.60, 397,901.40 and 260,018.80

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Solution

The fourth proportional to 265,267.60, 397,901.40 and 260,018.80 is: 390,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,267.60 : 397,901.40 = 260,018.80 : x
  2. Step 2: Convert to fraction form
    265,267.60/397,901.40 = 260,018.80/x
  3. Step 3: Cross multiply
    265,267.60x = 397,901.40 × 260,018.80
  4. Step 4: Simplify right side
    265,267.60x = 103,461,844,546.32
  5. Step 5: Solve for x
    x = 103,461,844,546.32/265,267.60
  6. Step 6: Final answer
    x = 390,028.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.