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Finding the Fourth Proportional to 553,528.68, 830,293.80 and 154,170.60

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Solution

The fourth proportional to 553,528.68, 830,293.80 and 154,170.60 is: 231,256.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,528.68 : 830,293.80 = 154,170.60 : x
  2. Step 2: Convert to fraction form
    553,528.68/830,293.80 = 154,170.60/x
  3. Step 3: Cross multiply
    553,528.68x = 830,293.80 × 154,170.60
  4. Step 4: Simplify right side
    553,528.68x = 128,006,893,322.28
  5. Step 5: Solve for x
    x = 128,006,893,322.28/553,528.68
  6. Step 6: Final answer
    x = 231,256.12

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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.