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Finding the Fourth Proportional to 346,873.70, 520,051.35 and 189,280.10

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Solution

The fourth proportional to 346,873.70, 520,051.35 and 189,280.10 is: 283,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,873.70 : 520,051.35 = 189,280.10 : x
  2. Step 2: Convert to fraction form
    346,873.70/520,051.35 = 189,280.10/x
  3. Step 3: Cross multiply
    346,873.70x = 520,051.35 × 189,280.10
  4. Step 4: Simplify right side
    346,873.70x = 98,435,371,533.14
  5. Step 5: Solve for x
    x = 98,435,371,533.14/346,873.70
  6. Step 6: Final answer
    x = 283,778.71

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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.