Home / 282,822.75-390,303.10-153,769.91

Finding the Fourth Proportional to 282,822.75, 390,303.10 and 153,769.91

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Solution

The fourth proportional to 282,822.75, 390,303.10 and 153,769.91 is: 212,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,822.75 : 390,303.10 = 153,769.91 : x
  2. Step 2: Convert to fraction form
    282,822.75/390,303.10 = 153,769.91/x
  3. Step 3: Cross multiply
    282,822.75x = 390,303.10 × 153,769.91
  4. Step 4: Simplify right side
    282,822.75x = 60,016,872,130.92
  5. Step 5: Solve for x
    x = 60,016,872,130.92/282,822.75
  6. Step 6: Final answer
    x = 212,206.66

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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.