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Finding the Fourth Proportional to 508,971.60, 763,543.80 and 153,982.80

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Solution

The fourth proportional to 508,971.60, 763,543.80 and 153,982.80 is: 231,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,971.60 : 763,543.80 = 153,982.80 : x
  2. Step 2: Convert to fraction form
    508,971.60/763,543.80 = 153,982.80/x
  3. Step 3: Cross multiply
    508,971.60x = 763,543.80 × 153,982.80
  4. Step 4: Simplify right side
    508,971.60x = 117,572,612,246.64
  5. Step 5: Solve for x
    x = 117,572,612,246.64/508,971.60
  6. Step 6: Final answer
    x = 231,000.34

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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.