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Finding the Fourth Proportional to 245,130.30, 367,695.45 and 87,301.80

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Solution

The fourth proportional to 245,130.30, 367,695.45 and 87,301.80 is: 130,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,130.30 : 367,695.45 = 87,301.80 : x
  2. Step 2: Convert to fraction form
    245,130.30/367,695.45 = 87,301.80/x
  3. Step 3: Cross multiply
    245,130.30x = 367,695.45 × 87,301.80
  4. Step 4: Simplify right side
    245,130.30x = 32,100,474,636.81
  5. Step 5: Solve for x
    x = 32,100,474,636.81/245,130.30
  6. Step 6: Final answer
    x = 130,952.70

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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.