Home / 280,850.79-387,574.20-153,526.35

Finding the Fourth Proportional to 280,850.79, 387,574.20 and 153,526.35

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Solution

The fourth proportional to 280,850.79, 387,574.20 and 153,526.35 is: 211,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,850.79 : 387,574.20 = 153,526.35 : x
  2. Step 2: Convert to fraction form
    280,850.79/387,574.20 = 153,526.35/x
  3. Step 3: Cross multiply
    280,850.79x = 387,574.20 × 153,526.35
  4. Step 4: Simplify right side
    280,850.79x = 59,502,852,280.17
  5. Step 5: Solve for x
    x = 59,502,852,280.17/280,850.79
  6. Step 6: Final answer
    x = 211,866.42

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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.