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Finding the Fourth Proportional to 510,406.52, 765,724.19 and 155,448.32

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Solution

The fourth proportional to 510,406.52, 765,724.19 and 155,448.32 is: 233,207.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,406.52 : 765,724.19 = 155,448.32 : x
  2. Step 2: Convert to fraction form
    510,406.52/765,724.19 = 155,448.32/x
  3. Step 3: Cross multiply
    510,406.52x = 765,724.19 × 155,448.32
  4. Step 4: Simplify right side
    510,406.52x = 119,030,534,313.00
  5. Step 5: Solve for x
    x = 119,030,534,313.00/510,406.52
  6. Step 6: Final answer
    x = 233,207.32

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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.