Home / 316,239.72-474,515.40-147,771.69

Finding the Fourth Proportional to 316,239.72, 474,515.40 and 147,771.69

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Solution

The fourth proportional to 316,239.72, 474,515.40 and 147,771.69 is: 221,730.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,239.72 : 474,515.40 = 147,771.69 : x
  2. Step 2: Convert to fraction form
    316,239.72/474,515.40 = 147,771.69/x
  3. Step 3: Cross multiply
    316,239.72x = 474,515.40 × 147,771.69
  4. Step 4: Simplify right side
    316,239.72x = 70,119,941,363.74
  5. Step 5: Solve for x
    x = 70,119,941,363.74/316,239.72
  6. Step 6: Final answer
    x = 221,730.34

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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.