Home / 206,875.09-310,330.59-57,115.45

Finding the Fourth Proportional to 206,875.09, 310,330.59 and 57,115.45

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Solution

The fourth proportional to 206,875.09, 310,330.59 and 57,115.45 is: 85,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,875.09 : 310,330.59 = 57,115.45 : x
  2. Step 2: Convert to fraction form
    206,875.09/310,330.59 = 57,115.45/x
  3. Step 3: Cross multiply
    206,875.09x = 310,330.59 × 57,115.45
  4. Step 4: Simplify right side
    206,875.09x = 17,724,671,296.62
  5. Step 5: Solve for x
    x = 17,724,671,296.62/206,875.09
  6. Step 6: Final answer
    x = 85,678.13

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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.