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Finding the Fourth Proportional to 260,042.59, 390,077.25 and 73,068.67

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Solution

The fourth proportional to 260,042.59, 390,077.25 and 73,068.67 is: 109,606.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,042.59 : 390,077.25 = 73,068.67 : x
  2. Step 2: Convert to fraction form
    260,042.59/390,077.25 = 73,068.67/x
  3. Step 3: Cross multiply
    260,042.59x = 390,077.25 × 73,068.67
  4. Step 4: Simplify right side
    260,042.59x = 28,502,425,854.76
  5. Step 5: Solve for x
    x = 28,502,425,854.76/260,042.59
  6. Step 6: Final answer
    x = 109,606.76

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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.