Home / 282,623.12-390,018.50-153,560.74

Finding the Fourth Proportional to 282,623.12, 390,018.50 and 153,560.74

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Solution

The fourth proportional to 282,623.12, 390,018.50 and 153,560.74 is: 211,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,623.12 : 390,018.50 = 153,560.74 : x
  2. Step 2: Convert to fraction form
    282,623.12/390,018.50 = 153,560.74/x
  3. Step 3: Cross multiply
    282,623.12x = 390,018.50 × 153,560.74
  4. Step 4: Simplify right side
    282,623.12x = 59,891,529,473.69
  5. Step 5: Solve for x
    x = 59,891,529,473.69/282,623.12
  6. Step 6: Final answer
    x = 211,913.06

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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.