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Finding the Fourth Proportional to 144,871.40, 217,307.10 and 97,869.80

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Solution

The fourth proportional to 144,871.40, 217,307.10 and 97,869.80 is: 146,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,871.40 : 217,307.10 = 97,869.80 : x
  2. Step 2: Convert to fraction form
    144,871.40/217,307.10 = 97,869.80/x
  3. Step 3: Cross multiply
    144,871.40x = 217,307.10 × 97,869.80
  4. Step 4: Simplify right side
    144,871.40x = 21,267,802,415.58
  5. Step 5: Solve for x
    x = 21,267,802,415.58/144,871.40
  6. Step 6: Final answer
    x = 146,804.70

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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.