Home / 285,205.48-393,583.68-156,152.32

Finding the Fourth Proportional to 285,205.48, 393,583.68 and 156,152.32

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Solution

The fourth proportional to 285,205.48, 393,583.68 and 156,152.32 is: 215,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,205.48 : 393,583.68 = 156,152.32 : x
  2. Step 2: Convert to fraction form
    285,205.48/393,583.68 = 156,152.32/x
  3. Step 3: Cross multiply
    285,205.48x = 393,583.68 × 156,152.32
  4. Step 4: Simplify right side
    285,205.48x = 61,459,004,746.14
  5. Step 5: Solve for x
    x = 61,459,004,746.14/285,205.48
  6. Step 6: Final answer
    x = 215,490.27

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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.