Home / 282,806.37-390,280.41-153,753.66

Finding the Fourth Proportional to 282,806.37, 390,280.41 and 153,753.66

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Solution

The fourth proportional to 282,806.37, 390,280.41 and 153,753.66 is: 212,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,806.37 : 390,280.41 = 153,753.66 : x
  2. Step 2: Convert to fraction form
    282,806.37/390,280.41 = 153,753.66/x
  3. Step 3: Cross multiply
    282,806.37x = 390,280.41 × 153,753.66
  4. Step 4: Simplify right side
    282,806.37x = 60,007,041,463.80
  5. Step 5: Solve for x
    x = 60,007,041,463.80/282,806.37
  6. Step 6: Final answer
    x = 212,184.19

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1.5x scale

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.