Home / 282,730.85-390,172.52-153,669.28

Finding the Fourth Proportional to 282,730.85, 390,172.52 and 153,669.28

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Solution

The fourth proportional to 282,730.85, 390,172.52 and 153,669.28 is: 212,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,730.85 : 390,172.52 = 153,669.28 : x
  2. Step 2: Convert to fraction form
    282,730.85/390,172.52 = 153,669.28/x
  3. Step 3: Cross multiply
    282,730.85x = 390,172.52 × 153,669.28
  4. Step 4: Simplify right side
    282,730.85x = 59,957,529,632.93
  5. Step 5: Solve for x
    x = 59,957,529,632.93/282,730.85
  6. Step 6: Final answer
    x = 212,065.75

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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.