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Finding the Fourth Proportional to 225,303.51, 337,937.94 and 139,931.69

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Solution

The fourth proportional to 225,303.51, 337,937.94 and 139,931.69 is: 209,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,303.51 : 337,937.94 = 139,931.69 : x
  2. Step 2: Convert to fraction form
    225,303.51/337,937.94 = 139,931.69/x
  3. Step 3: Cross multiply
    225,303.51x = 337,937.94 × 139,931.69
  4. Step 4: Simplify right side
    225,303.51x = 47,288,225,369.63
  5. Step 5: Solve for x
    x = 47,288,225,369.63/225,303.51
  6. Step 6: Final answer
    x = 209,886.77

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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.