Home / 282,785.90-390,252.06-153,733.10

Finding the Fourth Proportional to 282,785.90, 390,252.06 and 153,733.10

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Solution

The fourth proportional to 282,785.90, 390,252.06 and 153,733.10 is: 212,155.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,785.90 : 390,252.06 = 153,733.10 : x
  2. Step 2: Convert to fraction form
    282,785.90/390,252.06 = 153,733.10/x
  3. Step 3: Cross multiply
    282,785.90x = 390,252.06 × 153,733.10
  4. Step 4: Simplify right side
    282,785.90x = 59,994,658,965.19
  5. Step 5: Solve for x
    x = 59,994,658,965.19/282,785.90
  6. Step 6: Final answer
    x = 212,155.77

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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.