Home / 347,712.90-521,569.35-205,412.10

Finding the Fourth Proportional to 347,712.90, 521,569.35 and 205,412.10

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Solution

The fourth proportional to 347,712.90, 521,569.35 and 205,412.10 is: 308,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,712.90 : 521,569.35 = 205,412.10 : x
  2. Step 2: Convert to fraction form
    347,712.90/521,569.35 = 205,412.10/x
  3. Step 3: Cross multiply
    347,712.90x = 521,569.35 × 205,412.10
  4. Step 4: Simplify right side
    347,712.90x = 107,136,655,479.14
  5. Step 5: Solve for x
    x = 107,136,655,479.14/347,712.90
  6. Step 6: Final answer
    x = 308,118.15

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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.