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Finding the Fourth Proportional to 207,615.66, 286,509.59 and 112,122.34

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Solution

The fourth proportional to 207,615.66, 286,509.59 and 112,122.34 is: 154,728.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,615.66 : 286,509.59 = 112,122.34 : x
  2. Step 2: Convert to fraction form
    207,615.66/286,509.59 = 112,122.34/x
  3. Step 3: Cross multiply
    207,615.66x = 286,509.59 × 112,122.34
  4. Step 4: Simplify right side
    207,615.66x = 32,124,124,806.81
  5. Step 5: Solve for x
    x = 32,124,124,806.81/207,615.66
  6. Step 6: Final answer
    x = 154,728.82

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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.