Home / 280,822.16-387,533.16-153,505.04

Finding the Fourth Proportional to 280,822.16, 387,533.16 and 153,505.04

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Solution

The fourth proportional to 280,822.16, 387,533.16 and 153,505.04 is: 211,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,822.16 : 387,533.16 = 153,505.04 : x
  2. Step 2: Convert to fraction form
    280,822.16/387,533.16 = 153,505.04/x
  3. Step 3: Cross multiply
    280,822.16x = 387,533.16 × 153,505.04
  4. Step 4: Simplify right side
    280,822.16x = 59,488,293,227.13
  5. Step 5: Solve for x
    x = 59,488,293,227.13/280,822.16
  6. Step 6: Final answer
    x = 211,836.18

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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.