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Finding the Fourth Proportional to 346,393.86, 478,293.84 and 265,693.56

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Solution

The fourth proportional to 346,393.86, 478,293.84 and 265,693.56 is: 366,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,393.86 : 478,293.84 = 265,693.56 : x
  2. Step 2: Convert to fraction form
    346,393.86/478,293.84 = 265,693.56/x
  3. Step 3: Cross multiply
    346,393.86x = 478,293.84 × 265,693.56
  4. Step 4: Simplify right side
    346,393.86x = 127,079,593,075.67
  5. Step 5: Solve for x
    x = 127,079,593,075.67/346,393.86
  6. Step 6: Final answer
    x = 366,864.45

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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.