Home / 286,581.60-429,872.40-153,721.35

Finding the Fourth Proportional to 286,581.60, 429,872.40 and 153,721.35

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Solution

The fourth proportional to 286,581.60, 429,872.40 and 153,721.35 is: 230,582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,581.60 : 429,872.40 = 153,721.35 : x
  2. Step 2: Convert to fraction form
    286,581.60/429,872.40 = 153,721.35/x
  3. Step 3: Cross multiply
    286,581.60x = 429,872.40 × 153,721.35
  4. Step 4: Simplify right side
    286,581.60x = 66,080,565,655.74
  5. Step 5: Solve for x
    x = 66,080,565,655.74/286,581.60
  6. Step 6: Final answer
    x = 230,582.03

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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.