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Finding the Fourth Proportional to 302,574.90, 453,862.35 and 145,110.90

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Solution

The fourth proportional to 302,574.90, 453,862.35 and 145,110.90 is: 217,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,574.90 : 453,862.35 = 145,110.90 : x
  2. Step 2: Convert to fraction form
    302,574.90/453,862.35 = 145,110.90/x
  3. Step 3: Cross multiply
    302,574.90x = 453,862.35 × 145,110.90
  4. Step 4: Simplify right side
    302,574.90x = 65,860,374,084.62
  5. Step 5: Solve for x
    x = 65,860,374,084.62/302,574.90
  6. Step 6: Final answer
    x = 217,666.35

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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.