Home / 285,038.56-393,348.03-157,714.15

Finding the Fourth Proportional to 285,038.56, 393,348.03 and 157,714.15

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Solution

The fourth proportional to 285,038.56, 393,348.03 and 157,714.15 is: 217,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,038.56 : 393,348.03 = 157,714.15 : x
  2. Step 2: Convert to fraction form
    285,038.56/393,348.03 = 157,714.15/x
  3. Step 3: Cross multiply
    285,038.56x = 393,348.03 × 157,714.15
  4. Step 4: Simplify right side
    285,038.56x = 62,036,549,417.05
  5. Step 5: Solve for x
    x = 62,036,549,417.05/285,038.56
  6. Step 6: Final answer
    x = 217,642.66

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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.