Home / 390,185.10-584,875.08-190,258.47

Finding the Fourth Proportional to 390,185.10, 584,875.08 and 190,258.47

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Solution

The fourth proportional to 390,185.10, 584,875.08 and 190,258.47 is: 285,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,185.10 : 584,875.08 = 190,258.47 : x
  2. Step 2: Convert to fraction form
    390,185.10/584,875.08 = 190,258.47/x
  3. Step 3: Cross multiply
    390,185.10x = 584,875.08 × 190,258.47
  4. Step 4: Simplify right side
    390,185.10x = 111,277,437,861.93
  5. Step 5: Solve for x
    x = 111,277,437,861.93/390,185.10
  6. Step 6: Final answer
    x = 285,191.41

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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.