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Finding the Fourth Proportional to 346,005.36, 477,520.79 and 210,007.98

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Solution

The fourth proportional to 346,005.36, 477,520.79 and 210,007.98 is: 289,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,005.36 : 477,520.79 = 210,007.98 : x
  2. Step 2: Convert to fraction form
    346,005.36/477,520.79 = 210,007.98/x
  3. Step 3: Cross multiply
    346,005.36x = 477,520.79 × 210,007.98
  4. Step 4: Simplify right side
    346,005.36x = 100,283,175,465.86
  5. Step 5: Solve for x
    x = 100,283,175,465.86/346,005.36
  6. Step 6: Final answer
    x = 289,831.28

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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.