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Finding the Fourth Proportional to 292,001.60, 438,002.40 and 104,988.80

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Solution

The fourth proportional to 292,001.60, 438,002.40 and 104,988.80 is: 157,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,001.60 : 438,002.40 = 104,988.80 : x
  2. Step 2: Convert to fraction form
    292,001.60/438,002.40 = 104,988.80/x
  3. Step 3: Cross multiply
    292,001.60x = 438,002.40 × 104,988.80
  4. Step 4: Simplify right side
    292,001.60x = 45,985,346,373.12
  5. Step 5: Solve for x
    x = 45,985,346,373.12/292,001.60
  6. Step 6: Final answer
    x = 157,483.20

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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.