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Finding the Fourth Proportional to 262,017.60, 392,686.20 and 121,477.20

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Solution

The fourth proportional to 262,017.60, 392,686.20 and 121,477.20 is: 182,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,017.60 : 392,686.20 = 121,477.20 : x
  2. Step 2: Convert to fraction form
    262,017.60/392,686.20 = 121,477.20/x
  3. Step 3: Cross multiply
    262,017.60x = 392,686.20 × 121,477.20
  4. Step 4: Simplify right side
    262,017.60x = 47,702,420,054.64
  5. Step 5: Solve for x
    x = 47,702,420,054.64/262,017.60
  6. Step 6: Final answer
    x = 182,058.08

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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.