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Finding the Fourth Proportional to 459,432, 634,055.04 and 258,266.88

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Solution

The fourth proportional to 459,432, 634,055.04 and 258,266.88 is: 356,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,432 : 634,055.04 = 258,266.88 : x
  2. Step 2: Convert to fraction form
    459,432/634,055.04 = 258,266.88/x
  3. Step 3: Cross multiply
    459,432x = 634,055.04 × 258,266.88
  4. Step 4: Simplify right side
    459,432x = 163,755,416,929.08
  5. Step 5: Solve for x
    x = 163,755,416,929.08/459,432
  6. Step 6: Final answer
    x = 356,430.15

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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.