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Finding the Fourth Proportional to 268,859.60, 371,030.93 and 154,156.92

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Solution

The fourth proportional to 268,859.60, 371,030.93 and 154,156.92 is: 212,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,859.60 : 371,030.93 = 154,156.92 : x
  2. Step 2: Convert to fraction form
    268,859.60/371,030.93 = 154,156.92/x
  3. Step 3: Cross multiply
    268,859.60x = 371,030.93 × 154,156.92
  4. Step 4: Simplify right side
    268,859.60x = 57,196,985,896.52
  5. Step 5: Solve for x
    x = 57,196,985,896.52/268,859.60
  6. Step 6: Final answer
    x = 212,739.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.