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Finding the Fourth Proportional to 346,392.82, 478,012.79 and 193,426.75

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Solution

The fourth proportional to 346,392.82, 478,012.79 and 193,426.75 is: 266,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,392.82 : 478,012.79 = 193,426.75 : x
  2. Step 2: Convert to fraction form
    346,392.82/478,012.79 = 193,426.75/x
  3. Step 3: Cross multiply
    346,392.82x = 478,012.79 × 193,426.75
  4. Step 4: Simplify right side
    346,392.82x = 92,460,461,509.22
  5. Step 5: Solve for x
    x = 92,460,461,509.22/346,392.82
  6. Step 6: Final answer
    x = 266,923.72

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1.5x scale

Why These Related Problems?

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