Home / 388,130.81-581,999.27-177,588.32

Finding the Fourth Proportional to 388,130.81, 581,999.27 and 177,588.32

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Solution

The fourth proportional to 388,130.81, 581,999.27 and 177,588.32 is: 266,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,130.81 : 581,999.27 = 177,588.32 : x
  2. Step 2: Convert to fraction form
    388,130.81/581,999.27 = 177,588.32/x
  3. Step 3: Cross multiply
    388,130.81x = 581,999.27 × 177,588.32
  4. Step 4: Simplify right side
    388,130.81x = 103,356,268,802.59
  5. Step 5: Solve for x
    x = 103,356,268,802.59/388,130.81
  6. Step 6: Final answer
    x = 266,292.36

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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.