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Finding the Fourth Proportional to 356,342.40, 534,513.60 and 169,718.40

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Solution

The fourth proportional to 356,342.40, 534,513.60 and 169,718.40 is: 254,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,342.40 : 534,513.60 = 169,718.40 : x
  2. Step 2: Convert to fraction form
    356,342.40/534,513.60 = 169,718.40/x
  3. Step 3: Cross multiply
    356,342.40x = 534,513.60 × 169,718.40
  4. Step 4: Simplify right side
    356,342.40x = 90,716,792,970.24
  5. Step 5: Solve for x
    x = 90,716,792,970.24/356,342.40
  6. Step 6: Final answer
    x = 254,577.60

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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.