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Finding the Fourth Proportional to 352,547.82, 528,459.75 and 139,229.28

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Solution

The fourth proportional to 352,547.82, 528,459.75 and 139,229.28 is: 208,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,547.82 : 528,459.75 = 139,229.28 : x
  2. Step 2: Convert to fraction form
    352,547.82/528,459.75 = 139,229.28/x
  3. Step 3: Cross multiply
    352,547.82x = 528,459.75 × 139,229.28
  4. Step 4: Simplify right side
    352,547.82x = 73,577,070,501.48
  5. Step 5: Solve for x
    x = 73,577,070,501.48/352,547.82
  6. Step 6: Final answer
    x = 208,700.97

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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.