Home / 285,206.48-393,585.06-156,153.32

Finding the Fourth Proportional to 285,206.48, 393,585.06 and 156,153.32

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Solution

The fourth proportional to 285,206.48, 393,585.06 and 156,153.32 is: 215,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,206.48 : 393,585.06 = 156,153.32 : x
  2. Step 2: Convert to fraction form
    285,206.48/393,585.06 = 156,153.32/x
  3. Step 3: Cross multiply
    285,206.48x = 393,585.06 × 156,153.32
  4. Step 4: Simplify right side
    285,206.48x = 61,459,613,821.40
  5. Step 5: Solve for x
    x = 61,459,613,821.40/285,206.48
  6. Step 6: Final answer
    x = 215,491.65

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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.