Home / 285,270.98-393,686.25-157,946.57

Finding the Fourth Proportional to 285,270.98, 393,686.25 and 157,946.57

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Solution

The fourth proportional to 285,270.98, 393,686.25 and 157,946.57 is: 217,973.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,270.98 : 393,686.25 = 157,946.57 : x
  2. Step 2: Convert to fraction form
    285,270.98/393,686.25 = 157,946.57/x
  3. Step 3: Cross multiply
    285,270.98x = 393,686.25 × 157,946.57
  4. Step 4: Simplify right side
    285,270.98x = 62,181,390,085.50
  5. Step 5: Solve for x
    x = 62,181,390,085.50/285,270.98
  6. Step 6: Final answer
    x = 217,973.07

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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.