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Finding the Fourth Proportional to 515,246.10, 772,650.45 and 249,088.20

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Solution

The fourth proportional to 515,246.10, 772,650.45 and 249,088.20 is: 373,526.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,246.10 : 772,650.45 = 249,088.20 : x
  2. Step 2: Convert to fraction form
    515,246.10/772,650.45 = 249,088.20/x
  3. Step 3: Cross multiply
    515,246.10x = 772,650.45 × 249,088.20
  4. Step 4: Simplify right side
    515,246.10x = 192,458,109,819.69
  5. Step 5: Solve for x
    x = 192,458,109,819.69/515,246.10
  6. Step 6: Final answer
    x = 373,526.57

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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.