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Finding the Fourth Proportional to 353,970.70, 530,178.45 and 307,314.70

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Solution

The fourth proportional to 353,970.70, 530,178.45 and 307,314.70 is: 460,296.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,970.70 : 530,178.45 = 307,314.70 : x
  2. Step 2: Convert to fraction form
    353,970.70/530,178.45 = 307,314.70/x
  3. Step 3: Cross multiply
    353,970.70x = 530,178.45 × 307,314.70
  4. Step 4: Simplify right side
    353,970.70x = 162,931,631,308.22
  5. Step 5: Solve for x
    x = 162,931,631,308.22/353,970.70
  6. Step 6: Final answer
    x = 460,296.94

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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.