Home / 318,938.04-478,263.69-94,220.15

Finding the Fourth Proportional to 318,938.04, 478,263.69 and 94,220.15

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Solution

The fourth proportional to 318,938.04, 478,263.69 and 94,220.15 is: 141,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,938.04 : 478,263.69 = 94,220.15 : x
  2. Step 2: Convert to fraction form
    318,938.04/478,263.69 = 94,220.15/x
  3. Step 3: Cross multiply
    318,938.04x = 478,263.69 × 94,220.15
  4. Step 4: Simplify right side
    318,938.04x = 45,062,074,220.04
  5. Step 5: Solve for x
    x = 45,062,074,220.04/318,938.04
  6. Step 6: Final answer
    x = 141,287.86

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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.