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Finding the Fourth Proportional to 357,699.72, 536,632.56 and 104,970

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Solution

The fourth proportional to 357,699.72, 536,632.56 and 104,970 is: 157,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,699.72 : 536,632.56 = 104,970 : x
  2. Step 2: Convert to fraction form
    357,699.72/536,632.56 = 104,970/x
  3. Step 3: Cross multiply
    357,699.72x = 536,632.56 × 104,970
  4. Step 4: Simplify right side
    357,699.72x = 56,330,319,823.20
  5. Step 5: Solve for x
    x = 56,330,319,823.20/357,699.72
  6. Step 6: Final answer
    x = 157,479.35

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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.