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Finding the Fourth Proportional to 291,556.30, 402,349.71 and 162,503.10

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Solution

The fourth proportional to 291,556.30, 402,349.71 and 162,503.10 is: 224,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,556.30 : 402,349.71 = 162,503.10 : x
  2. Step 2: Convert to fraction form
    291,556.30/402,349.71 = 162,503.10/x
  3. Step 3: Cross multiply
    291,556.30x = 402,349.71 × 162,503.10
  4. Step 4: Simplify right side
    291,556.30x = 65,383,075,159.10
  5. Step 5: Solve for x
    x = 65,383,075,159.10/291,556.30
  6. Step 6: Final answer
    x = 224,255.40

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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.