Home / 454,645.90-681,904.05-155,140.30

Finding the Fourth Proportional to 454,645.90, 681,904.05 and 155,140.30

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Solution

The fourth proportional to 454,645.90, 681,904.05 and 155,140.30 is: 232,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,645.90 : 681,904.05 = 155,140.30 : x
  2. Step 2: Convert to fraction form
    454,645.90/681,904.05 = 155,140.30/x
  3. Step 3: Cross multiply
    454,645.90x = 681,904.05 × 155,140.30
  4. Step 4: Simplify right side
    454,645.90x = 105,790,798,888.22
  5. Step 5: Solve for x
    x = 105,790,798,888.22/454,645.90
  6. Step 6: Final answer
    x = 232,688.34

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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.