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Finding the Fourth Proportional to 304,572.48, 420,323.76 and 170,436.48

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Solution

The fourth proportional to 304,572.48, 420,323.76 and 170,436.48 is: 235,210.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,572.48 : 420,323.76 = 170,436.48 : x
  2. Step 2: Convert to fraction form
    304,572.48/420,323.76 = 170,436.48/x
  3. Step 3: Cross multiply
    304,572.48x = 420,323.76 × 170,436.48
  4. Step 4: Simplify right side
    304,572.48x = 71,638,502,114.76
  5. Step 5: Solve for x
    x = 71,638,502,114.76/304,572.48
  6. Step 6: Final answer
    x = 235,210.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.