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Finding the Fourth Proportional to 845.02, 1,165.36 and 530.32

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Solution

The fourth proportional to 845.02, 1,165.36 and 530.32 is: 731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.02 : 1,165.36 = 530.32 : x
  2. Step 2: Convert to fraction form
    845.02/1,165.36 = 530.32/x
  3. Step 3: Cross multiply
    845.02x = 1,165.36 × 530.32
  4. Step 4: Simplify right side
    845.02x = 618,005.24
  5. Step 5: Solve for x
    x = 618,005.24/845.02
  6. Step 6: Final answer
    x = 731.35

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Double scale
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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.