Home / 305,207.10-457,810.65-272,547.90

Finding the Fourth Proportional to 305,207.10, 457,810.65 and 272,547.90

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Solution

The fourth proportional to 305,207.10, 457,810.65 and 272,547.90 is: 408,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,207.10 : 457,810.65 = 272,547.90 : x
  2. Step 2: Convert to fraction form
    305,207.10/457,810.65 = 272,547.90/x
  3. Step 3: Cross multiply
    305,207.10x = 457,810.65 × 272,547.90
  4. Step 4: Simplify right side
    305,207.10x = 124,775,331,255.14
  5. Step 5: Solve for x
    x = 124,775,331,255.14/305,207.10
  6. Step 6: Final answer
    x = 408,821.85

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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.