Home / 285,212.19-393,597.49-156,148.51

Finding the Fourth Proportional to 285,212.19, 393,597.49 and 156,148.51

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Solution

The fourth proportional to 285,212.19, 393,597.49 and 156,148.51 is: 215,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,212.19 : 393,597.49 = 156,148.51 : x
  2. Step 2: Convert to fraction form
    285,212.19/393,597.49 = 156,148.51/x
  3. Step 3: Cross multiply
    285,212.19x = 393,597.49 × 156,148.51
  4. Step 4: Simplify right side
    285,212.19x = 61,459,661,603.24
  5. Step 5: Solve for x
    x = 61,459,661,603.24/285,212.19
  6. Step 6: Final answer
    x = 215,487.50

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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.