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Finding the Fourth Proportional to 163,322.16, 244,875.12 and 78,915.12

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Solution

The fourth proportional to 163,322.16, 244,875.12 and 78,915.12 is: 118,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,322.16 : 244,875.12 = 78,915.12 : x
  2. Step 2: Convert to fraction form
    163,322.16/244,875.12 = 78,915.12/x
  3. Step 3: Cross multiply
    163,322.16x = 244,875.12 × 78,915.12
  4. Step 4: Simplify right side
    163,322.16x = 19,324,349,479.81
  5. Step 5: Solve for x
    x = 19,324,349,479.81/163,322.16
  6. Step 6: Final answer
    x = 118,320.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.