Home / 320,487.10-442,258.86-175,290.55

Finding the Fourth Proportional to 320,487.10, 442,258.86 and 175,290.55

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Solution

The fourth proportional to 320,487.10, 442,258.86 and 175,290.55 is: 241,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,487.10 : 442,258.86 = 175,290.55 : x
  2. Step 2: Convert to fraction form
    320,487.10/442,258.86 = 175,290.55/x
  3. Step 3: Cross multiply
    320,487.10x = 442,258.86 × 175,290.55
  4. Step 4: Simplify right side
    320,487.10x = 77,523,798,811.77
  5. Step 5: Solve for x
    x = 77,523,798,811.77/320,487.10
  6. Step 6: Final answer
    x = 241,893.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.