Home / 280,166.78-386,629.65-152,842.40

Finding the Fourth Proportional to 280,166.78, 386,629.65 and 152,842.40

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Solution

The fourth proportional to 280,166.78, 386,629.65 and 152,842.40 is: 210,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,166.78 : 386,629.65 = 152,842.40 : x
  2. Step 2: Convert to fraction form
    280,166.78/386,629.65 = 152,842.40/x
  3. Step 3: Cross multiply
    280,166.78x = 386,629.65 × 152,842.40
  4. Step 4: Simplify right side
    280,166.78x = 59,093,403,617.16
  5. Step 5: Solve for x
    x = 59,093,403,617.16/280,166.78
  6. Step 6: Final answer
    x = 210,922.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.