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Finding the Fourth Proportional to 384.54, 530.47 and 260.24

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Solution

The fourth proportional to 384.54, 530.47 and 260.24 is: 359.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.54 : 530.47 = 260.24 : x
  2. Step 2: Convert to fraction form
    384.54/530.47 = 260.24/x
  3. Step 3: Cross multiply
    384.54x = 530.47 × 260.24
  4. Step 4: Simplify right side
    384.54x = 138,047.19
  5. Step 5: Solve for x
    x = 138,047.19/384.54
  6. Step 6: Final answer
    x = 359.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.