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Finding the Fourth Proportional to 324,068.30, 486,102.45 and 87,434.90

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Solution

The fourth proportional to 324,068.30, 486,102.45 and 87,434.90 is: 131,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,068.30 : 486,102.45 = 87,434.90 : x
  2. Step 2: Convert to fraction form
    324,068.30/486,102.45 = 87,434.90/x
  3. Step 3: Cross multiply
    324,068.30x = 486,102.45 × 87,434.90
  4. Step 4: Simplify right side
    324,068.30x = 42,502,319,105.51
  5. Step 5: Solve for x
    x = 42,502,319,105.51/324,068.30
  6. Step 6: Final answer
    x = 131,152.35

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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.