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Finding the Fourth Proportional to 200,681.58, 301,038.76 and 100,790.40

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Solution

The fourth proportional to 200,681.58, 301,038.76 and 100,790.40 is: 151,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,681.58 : 301,038.76 = 100,790.40 : x
  2. Step 2: Convert to fraction form
    200,681.58/301,038.76 = 100,790.40/x
  3. Step 3: Cross multiply
    200,681.58x = 301,038.76 × 100,790.40
  4. Step 4: Simplify right side
    200,681.58x = 30,341,817,035.90
  5. Step 5: Solve for x
    x = 30,341,817,035.90/200,681.58
  6. Step 6: Final answer
    x = 151,193.83

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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.