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Finding the Fourth Proportional to 292,430.70, 438,427.35 and 159,461.10

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Solution

The fourth proportional to 292,430.70, 438,427.35 and 159,461.10 is: 239,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,430.70 : 438,427.35 = 159,461.10 : x
  2. Step 2: Convert to fraction form
    292,430.70/438,427.35 = 159,461.10/x
  3. Step 3: Cross multiply
    292,430.70x = 438,427.35 × 159,461.10
  4. Step 4: Simplify right side
    292,430.70x = 69,912,107,501.09
  5. Step 5: Solve for x
    x = 69,912,107,501.09/292,430.70
  6. Step 6: Final answer
    x = 239,072.39

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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.