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Finding the Fourth Proportional to 253,374.84, 349,663.68 and 152,779.32

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Solution

The fourth proportional to 253,374.84, 349,663.68 and 152,779.32 is: 210,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,374.84 : 349,663.68 = 152,779.32 : x
  2. Step 2: Convert to fraction form
    253,374.84/349,663.68 = 152,779.32/x
  3. Step 3: Cross multiply
    253,374.84x = 349,663.68 × 152,779.32
  4. Step 4: Simplify right side
    253,374.84x = 53,421,379,259.10
  5. Step 5: Solve for x
    x = 53,421,379,259.10/253,374.84
  6. Step 6: Final answer
    x = 210,839.32

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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.