Home / 343,712.18-515,501.48-172,888.40

Finding the Fourth Proportional to 343,712.18, 515,501.48 and 172,888.40

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Solution

The fourth proportional to 343,712.18, 515,501.48 and 172,888.40 is: 259,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,712.18 : 515,501.48 = 172,888.40 : x
  2. Step 2: Convert to fraction form
    343,712.18/515,501.48 = 172,888.40/x
  3. Step 3: Cross multiply
    343,712.18x = 515,501.48 × 172,888.40
  4. Step 4: Simplify right side
    343,712.18x = 89,124,226,074.83
  5. Step 5: Solve for x
    x = 89,124,226,074.83/343,712.18
  6. Step 6: Final answer
    x = 259,299.00

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1.5x scale

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.