Home / 251,430.08-377,407.52-111,287.20

Finding the Fourth Proportional to 251,430.08, 377,407.52 and 111,287.20

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Solution

The fourth proportional to 251,430.08, 377,407.52 and 111,287.20 is: 167,046.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,430.08 : 377,407.52 = 111,287.20 : x
  2. Step 2: Convert to fraction form
    251,430.08/377,407.52 = 111,287.20/x
  3. Step 3: Cross multiply
    251,430.08x = 377,407.52 × 111,287.20
  4. Step 4: Simplify right side
    251,430.08x = 42,000,626,159.74
  5. Step 5: Solve for x
    x = 42,000,626,159.74/251,430.08
  6. Step 6: Final answer
    x = 167,046.94

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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.