Home / 386,315.60-579,473.40-102,005.60

Finding the Fourth Proportional to 386,315.60, 579,473.40 and 102,005.60

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Solution

The fourth proportional to 386,315.60, 579,473.40 and 102,005.60 is: 153,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,315.60 : 579,473.40 = 102,005.60 : x
  2. Step 2: Convert to fraction form
    386,315.60/579,473.40 = 102,005.60/x
  3. Step 3: Cross multiply
    386,315.60x = 579,473.40 × 102,005.60
  4. Step 4: Simplify right side
    386,315.60x = 59,109,531,851.04
  5. Step 5: Solve for x
    x = 59,109,531,851.04/386,315.60
  6. Step 6: Final answer
    x = 153,008.40

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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.