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Finding the Fourth Proportional to 348,312.78, 522,475.62 and 99,001.26

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Solution

The fourth proportional to 348,312.78, 522,475.62 and 99,001.26 is: 148,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,312.78 : 522,475.62 = 99,001.26 : x
  2. Step 2: Convert to fraction form
    348,312.78/522,475.62 = 99,001.26/x
  3. Step 3: Cross multiply
    348,312.78x = 522,475.62 × 99,001.26
  4. Step 4: Simplify right side
    348,312.78x = 51,725,744,699.28
  5. Step 5: Solve for x
    x = 51,725,744,699.28/348,312.78
  6. Step 6: Final answer
    x = 148,503.72

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1.5x scale

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.