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Finding the Fourth Proportional to 253,575, 380,220.21 and 173,703.24

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Solution

The fourth proportional to 253,575, 380,220.21 and 173,703.24 is: 260,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,575 : 380,220.21 = 173,703.24 : x
  2. Step 2: Convert to fraction form
    253,575/380,220.21 = 173,703.24/x
  3. Step 3: Cross multiply
    253,575x = 380,220.21 × 173,703.24
  4. Step 4: Simplify right side
    253,575x = 66,045,482,390.48
  5. Step 5: Solve for x
    x = 66,045,482,390.48/253,575
  6. Step 6: Final answer
    x = 260,457.39

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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.