Home / 305,686.95-458,115.71-172,501.35

Finding the Fourth Proportional to 305,686.95, 458,115.71 and 172,501.35

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Solution

The fourth proportional to 305,686.95, 458,115.71 and 172,501.35 is: 258,518.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,686.95 : 458,115.71 = 172,501.35 : x
  2. Step 2: Convert to fraction form
    305,686.95/458,115.71 = 172,501.35/x
  3. Step 3: Cross multiply
    305,686.95x = 458,115.71 × 172,501.35
  4. Step 4: Simplify right side
    305,686.95x = 79,025,577,568.70
  5. Step 5: Solve for x
    x = 79,025,577,568.70/305,686.95
  6. Step 6: Final answer
    x = 258,518.00

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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.