Home / 384,334.20-530,430.12-223,157.16

Finding the Fourth Proportional to 384,334.20, 530,430.12 and 223,157.16

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Solution

The fourth proportional to 384,334.20, 530,430.12 and 223,157.16 is: 307,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,334.20 : 530,430.12 = 223,157.16 : x
  2. Step 2: Convert to fraction form
    384,334.20/530,430.12 = 223,157.16/x
  3. Step 3: Cross multiply
    384,334.20x = 530,430.12 × 223,157.16
  4. Step 4: Simplify right side
    384,334.20x = 118,369,279,157.66
  5. Step 5: Solve for x
    x = 118,369,279,157.66/384,334.20
  6. Step 6: Final answer
    x = 307,985.29

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1.5x scale

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.