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Finding the Fourth Proportional to 189,262.54, 283,303.32 and 139,398.94

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Solution

The fourth proportional to 189,262.54, 283,303.32 and 139,398.94 is: 208,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,262.54 : 283,303.32 = 139,398.94 : x
  2. Step 2: Convert to fraction form
    189,262.54/283,303.32 = 139,398.94/x
  3. Step 3: Cross multiply
    189,262.54x = 283,303.32 × 139,398.94
  4. Step 4: Simplify right side
    189,262.54x = 39,492,182,506.48
  5. Step 5: Solve for x
    x = 39,492,182,506.48/189,262.54
  6. Step 6: Final answer
    x = 208,663.49

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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.