Home / 281,106.18-387,929.58-153,779.04

Finding the Fourth Proportional to 281,106.18, 387,929.58 and 153,779.04

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Solution

The fourth proportional to 281,106.18, 387,929.58 and 153,779.04 is: 212,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,106.18 : 387,929.58 = 153,779.04 : x
  2. Step 2: Convert to fraction form
    281,106.18/387,929.58 = 153,779.04/x
  3. Step 3: Cross multiply
    281,106.18x = 387,929.58 × 153,779.04
  4. Step 4: Simplify right side
    281,106.18x = 59,655,438,400.00
  5. Step 5: Solve for x
    x = 59,655,438,400.00/281,106.18
  6. Step 6: Final answer
    x = 212,216.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.