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Finding the Fourth Proportional to 318,877.52, 478,316.28 and 277,820.24

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Solution

The fourth proportional to 318,877.52, 478,316.28 and 277,820.24 is: 416,730.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,877.52 : 478,316.28 = 277,820.24 : x
  2. Step 2: Convert to fraction form
    318,877.52/478,316.28 = 277,820.24/x
  3. Step 3: Cross multiply
    318,877.52x = 478,316.28 × 277,820.24
  4. Step 4: Simplify right side
    318,877.52x = 132,885,943,705.51
  5. Step 5: Solve for x
    x = 132,885,943,705.51/318,877.52
  6. Step 6: Final answer
    x = 416,730.36

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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.