Home / 306,347.36-459,542.88-81,706.52

Finding the Fourth Proportional to 306,347.36, 459,542.88 and 81,706.52

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Solution

The fourth proportional to 306,347.36, 459,542.88 and 81,706.52 is: 122,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,347.36 : 459,542.88 = 81,706.52 : x
  2. Step 2: Convert to fraction form
    306,347.36/459,542.88 = 81,706.52/x
  3. Step 3: Cross multiply
    306,347.36x = 459,542.88 × 81,706.52
  4. Step 4: Simplify right side
    306,347.36x = 37,547,649,515.58
  5. Step 5: Solve for x
    x = 37,547,649,515.58/306,347.36
  6. Step 6: Final answer
    x = 122,565.60

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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.