Home / 390,731.10-586,070.73-177,448.38

Finding the Fourth Proportional to 390,731.10, 586,070.73 and 177,448.38

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Solution

The fourth proportional to 390,731.10, 586,070.73 and 177,448.38 is: 266,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,731.10 : 586,070.73 = 177,448.38 : x
  2. Step 2: Convert to fraction form
    390,731.10/586,070.73 = 177,448.38/x
  3. Step 3: Cross multiply
    390,731.10x = 586,070.73 × 177,448.38
  4. Step 4: Simplify right side
    390,731.10x = 103,997,301,603.92
  5. Step 5: Solve for x
    x = 103,997,301,603.92/390,731.10
  6. Step 6: Final answer
    x = 266,160.80

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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.