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Finding the Fourth Proportional to 235,501.40, 353,273.70 and 77,730.20

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Solution

The fourth proportional to 235,501.40, 353,273.70 and 77,730.20 is: 116,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,501.40 : 353,273.70 = 77,730.20 : x
  2. Step 2: Convert to fraction form
    235,501.40/353,273.70 = 77,730.20/x
  3. Step 3: Cross multiply
    235,501.40x = 353,273.70 × 77,730.20
  4. Step 4: Simplify right side
    235,501.40x = 27,460,035,355.74
  5. Step 5: Solve for x
    x = 27,460,035,355.74/235,501.40
  6. Step 6: Final answer
    x = 116,602.43

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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.