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Finding the Fourth Proportional to 205,038.60, 307,557.90 and 167,640.90

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Solution

The fourth proportional to 205,038.60, 307,557.90 and 167,640.90 is: 251,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,038.60 : 307,557.90 = 167,640.90 : x
  2. Step 2: Convert to fraction form
    205,038.60/307,557.90 = 167,640.90/x
  3. Step 3: Cross multiply
    205,038.60x = 307,557.90 × 167,640.90
  4. Step 4: Simplify right side
    205,038.60x = 51,559,283,158.11
  5. Step 5: Solve for x
    x = 51,559,283,158.11/205,038.60
  6. Step 6: Final answer
    x = 251,461.35

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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.