Home / 350,220.28-525,382.26-128,587

Finding the Fourth Proportional to 350,220.28, 525,382.26 and 128,587

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Solution

The fourth proportional to 350,220.28, 525,382.26 and 128,587 is: 192,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,220.28 : 525,382.26 = 128,587 : x
  2. Step 2: Convert to fraction form
    350,220.28/525,382.26 = 128,587/x
  3. Step 3: Cross multiply
    350,220.28x = 525,382.26 × 128,587
  4. Step 4: Simplify right side
    350,220.28x = 67,557,328,666.62
  5. Step 5: Solve for x
    x = 67,557,328,666.62/350,220.28
  6. Step 6: Final answer
    x = 192,899.53

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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.