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Finding the Fourth Proportional to 453,721.08, 626,130 and 249,767.64

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Solution

The fourth proportional to 453,721.08, 626,130 and 249,767.64 is: 344,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,721.08 : 626,130 = 249,767.64 : x
  2. Step 2: Convert to fraction form
    453,721.08/626,130 = 249,767.64/x
  3. Step 3: Cross multiply
    453,721.08x = 626,130 × 249,767.64
  4. Step 4: Simplify right side
    453,721.08x = 156,387,012,433.20
  5. Step 5: Solve for x
    x = 156,387,012,433.20/453,721.08
  6. Step 6: Final answer
    x = 344,676.54

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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.