Home / 286,524.04-429,637.72-128,616.52

Finding the Fourth Proportional to 286,524.04, 429,637.72 and 128,616.52

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Solution

The fourth proportional to 286,524.04, 429,637.72 and 128,616.52 is: 192,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,524.04 : 429,637.72 = 128,616.52 : x
  2. Step 2: Convert to fraction form
    286,524.04/429,637.72 = 128,616.52/x
  3. Step 3: Cross multiply
    286,524.04x = 429,637.72 × 128,616.52
  4. Step 4: Simplify right side
    286,524.04x = 55,258,508,407.13
  5. Step 5: Solve for x
    x = 55,258,508,407.13/286,524.04
  6. Step 6: Final answer
    x = 192,858.19

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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.