Home / 285,158.06-393,513.36-157,830.92

Finding the Fourth Proportional to 285,158.06, 393,513.36 and 157,830.92

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Solution

The fourth proportional to 285,158.06, 393,513.36 and 157,830.92 is: 217,804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,158.06 : 393,513.36 = 157,830.92 : x
  2. Step 2: Convert to fraction form
    285,158.06/393,513.36 = 157,830.92/x
  3. Step 3: Cross multiply
    285,158.06x = 393,513.36 × 157,830.92
  4. Step 4: Simplify right side
    285,158.06x = 62,108,575,641.09
  5. Step 5: Solve for x
    x = 62,108,575,641.09/285,158.06
  6. Step 6: Final answer
    x = 217,804.03

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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.