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Finding the Fourth Proportional to 510,445.42, 765,779.01 and 155,450.32

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Solution

The fourth proportional to 510,445.42, 765,779.01 and 155,450.32 is: 233,209.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,445.42 : 765,779.01 = 155,450.32 : x
  2. Step 2: Convert to fraction form
    510,445.42/765,779.01 = 155,450.32/x
  3. Step 3: Cross multiply
    510,445.42x = 765,779.01 × 155,450.32
  4. Step 4: Simplify right side
    510,445.42x = 119,040,592,153.78
  5. Step 5: Solve for x
    x = 119,040,592,153.78/510,445.42
  6. Step 6: Final answer
    x = 233,209.25

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1.5x scale

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.