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Finding the Fourth Proportional to 340,970.01, 511,436.40 and 104,312.67

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Solution

The fourth proportional to 340,970.01, 511,436.40 and 104,312.67 is: 156,463.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,970.01 : 511,436.40 = 104,312.67 : x
  2. Step 2: Convert to fraction form
    340,970.01/511,436.40 = 104,312.67/x
  3. Step 3: Cross multiply
    340,970.01x = 511,436.40 × 104,312.67
  4. Step 4: Simplify right side
    340,970.01x = 53,349,296,419.19
  5. Step 5: Solve for x
    x = 53,349,296,419.19/340,970.01
  6. Step 6: Final answer
    x = 156,463.31

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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.