Home / 438,130.36-657,200.76-153,828.04

Finding the Fourth Proportional to 438,130.36, 657,200.76 and 153,828.04

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Solution

The fourth proportional to 438,130.36, 657,200.76 and 153,828.04 is: 230,743.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,130.36 : 657,200.76 = 153,828.04 : x
  2. Step 2: Convert to fraction form
    438,130.36/657,200.76 = 153,828.04/x
  3. Step 3: Cross multiply
    438,130.36x = 657,200.76 × 153,828.04
  4. Step 4: Simplify right side
    438,130.36x = 101,095,904,797.31
  5. Step 5: Solve for x
    x = 101,095,904,797.31/438,130.36
  6. Step 6: Final answer
    x = 230,743.89

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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.