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Finding the Fourth Proportional to 559,938.55, 839,911.01 and 139,214.42

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Solution

The fourth proportional to 559,938.55, 839,911.01 and 139,214.42 is: 208,822.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,938.55 : 839,911.01 = 139,214.42 : x
  2. Step 2: Convert to fraction form
    559,938.55/839,911.01 = 139,214.42/x
  3. Step 3: Cross multiply
    559,938.55x = 839,911.01 × 139,214.42
  4. Step 4: Simplify right side
    559,938.55x = 116,927,724,108.76
  5. Step 5: Solve for x
    x = 116,927,724,108.76/559,938.55
  6. Step 6: Final answer
    x = 208,822.42

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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.