Home / 315,731.95-473,267.12-147,113.21

Finding the Fourth Proportional to 315,731.95, 473,267.12 and 147,113.21

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Solution

The fourth proportional to 315,731.95, 473,267.12 and 147,113.21 is: 220,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,731.95 : 473,267.12 = 147,113.21 : x
  2. Step 2: Convert to fraction form
    315,731.95/473,267.12 = 147,113.21/x
  3. Step 3: Cross multiply
    315,731.95x = 473,267.12 × 147,113.21
  4. Step 4: Simplify right side
    315,731.95x = 69,623,845,210.66
  5. Step 5: Solve for x
    x = 69,623,845,210.66/315,731.95
  6. Step 6: Final answer
    x = 220,515.68

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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.