Home / 239,430.91-330,404.70-130,532.89

Finding the Fourth Proportional to 239,430.91, 330,404.70 and 130,532.89

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Solution

The fourth proportional to 239,430.91, 330,404.70 and 130,532.89 is: 180,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,430.91 : 330,404.70 = 130,532.89 : x
  2. Step 2: Convert to fraction form
    239,430.91/330,404.70 = 130,532.89/x
  3. Step 3: Cross multiply
    239,430.91x = 330,404.70 × 130,532.89
  4. Step 4: Simplify right side
    239,430.91x = 43,128,679,707.92
  5. Step 5: Solve for x
    x = 43,128,679,707.92/239,430.91
  6. Step 6: Final answer
    x = 180,129.96

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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.